EP 0762308 B1 20031126 - Arrangement for remote information exchange between a passive portable object and a station, corresponding object and station
Title (en)
Arrangement for remote information exchange between a passive portable object and a station, corresponding object and station
Title (de)
Anlage zum Fernaustausch von Informationen zwischen einem tragbaren passiven Objekt und einer Station, entsprechendes Objekt und Station
Title (fr)
Installation pour l'échange d'informations à distance entre un objet portatif passif et une station, objet et station correspondants
Publication
Application
Priority
FR 9510445 A 19950906
Abstract (en)
[origin: EP0762308A1] The portable object (10) incorporates a data transmission system with an antenna (L4) intended for coupling to that of the fixed station. A tuning capacitor (C4) for the second frequency and a full-wave rectifier (RD) are connected, and an electronic parallel regulator (RE) stabilises the DC voltage. Another tuned circuit (L30,C30) can be switched by a logic and memory circuit (5) from an inactive state into resonance with the station coil at the first frequency. A dipole filter at the station behaves as an inductance at this frequency and as a very high impedance at the frequency of power transmission.
IPC 1-7
IPC 8 full level
G01V 3/00 (2006.01); G01V 15/00 (2006.01); G06K 7/00 (2006.01); G06K 7/08 (2006.01); G06K 17/00 (2006.01); H04B 5/02 (2006.01)
CPC (source: EP US)
G06K 7/0008 (2013.01 - EP US); G06K 7/086 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0762308 A1 19970312; EP 0762308 B1 20031126; DE 69630843 D1 20040108; DE 69630843 T2 20041111; FR 2738370 A1 19970307; FR 2738370 B1 19971107; JP H09191281 A 19970722; US 5838235 A 19981117
DOCDB simple family (application)
EP 96401894 A 19960904; DE 69630843 T 19960904; FR 9510445 A 19950906; JP 23536596 A 19960905; US 70857896 A 19960905